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Rear disc conversion issue
The conflicting info out there on this sucks!
Info on the setup:
77 k10 with axles out of a 85 K20 HD.
Stock 77 master and vac brake booster.
Stock 77 proportioning valve
Stock 77 front calipers
1976 caddy elderado calipers on the rear.
The problem:
After multiple bleedings the trucks pedal goes to the floor. Fronts are still working but the rears are not. So what could be causing this? I have read online about disc proportioning valves, residual valves, a adjustabe proportioning valves. I can't afford to just throw parts at this. Is it possible to gut the proportioning valve?
Any info would be great as I need my truck!
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 1984 chevy c10, built 400sb,.(SOLD )
77 K10 Project / daily driver "The Grinch" http://67-72chevytrucks.com/vboard/s...d.php?t=318363
1956 Willys Wagon (327 chevy) Project (Now Buick 225)
1980 Corvette L-48 4 speed
1992 Mustang GT built 5.0 5 speed
1985 C10 LWB Sold
1982 K10 SWB plow truck Parted out
1986 D30 M1028 fire brush truck Parted out
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